LLMCost

Document Summarizer LLM Cost

Batch summarization of long documents. Monthly estimates at 2,000 requests/mo, avg 20,000 input / 1,000 output tokens per request.

#ModelEst. monthly costvs cheapest
1Qwen: Qwen3.7 Flash$1.46
2OpenAI: GPT-5 Nano$2.801.9×
3DeepSeek: DeepSeek V4 Flash 0731$3.562.4×
4Google: Gemini 2.5 Flash Lite$4.803.3×
5OpenAI: GPT-5.6 Luna Pro (batch)$5.203.6×
6OpenAI: GPT-5.6 Luna (batch)$5.203.6×
7Google: Gemini 3.5 Flash Lite (batch)$8.505.8×
8Google: Gemini 3.7 Flash (batch)$9.386.4×
9Meta: Llama 4 Maverick$9.606.6×
10DeepSeek: DeepSeek V4 Flash Vision Exp$10.126.9×
11OpenAI: GPT-5.6 Luna$10.407.1×
12OpenAI: GPT-5.6 Luna Pro$10.407.1×
13OpenAI: GPT-5.4 Nano$10.507.2×
14Google: Nano Banana 2 Lite (Gemini 3.1 Flash Lite Image)$13.008.9×
15OpenAI: GPT-5 Mini$14.009.6×
16Qwen: Qwen3.7 Plus$15.3610.5×
17Google: Gemini 3.5 Flash Lite$17.0011.6×
18Google: Gemini 2.5 Flash$17.0011.6×
19Google: Gemini 3.7 Flash$18.7512.8×
20Google: Gemini 3.6 Flash (batch)$18.7512.8×
21Qwen: Qwen3 235B A22B$21.8415.0×
22Qwen: Qwen3.8 27B$22.0015.1×
23DeepSeek: DeepSeek V3.1$25.3017.3×
24Google: Nano Banana 2 (Gemini 3.1 Flash Image)$26.0017.8×
25DeepSeek: R1$33.0022.6×
26Google: Gemini 3.6 Flash$37.5025.7×
27Amazon: Nova Pro 1.0$38.4026.3×
28OpenAI: GPT-5.4 Mini$39.0026.7×
29OpenAI: GPT-5.6 Sol Pro (batch)$50.0034.2×
30OpenAI: GPT-5.6 Sol (batch)$50.0034.2×
31Anthropic: Claude Sonnet 5 (batch)$50.0034.2×
32DeepSeek: DeepSeek V4 Pro 0813$51.6135.4×
33OpenAI: GPT-5.6 Terra Pro (batch)$52.0035.6×
34OpenAI: GPT-5.6 Terra (batch)$52.0035.6×
35OpenAI: o4 Mini$52.8036.2×
36OpenAI: GPT-5$70.0047.9×
37Google: Gemini 2.5 Pro$70.0047.9×
38Google: Gemini 3.5 Flash$78.0053.4×
39Qwen: Qwen3.8 2.4T A95B$92.0063.0×
40SpaceXAI: Grok 4.6$92.0063.0×
41Qwen: Qwen3.8 Max$92.0063.0×
42SpaceXAI: Grok 4.5$92.0063.0×
43OpenAI: o3$96.0065.8×
44OpenAI: GPT-5.6 Sol$100.0068.5×
45Anthropic: Claude Sonnet 5$100.0068.5×
46OpenAI: GPT-5.6 Sol Pro$100.0068.5×
47OpenAI: GPT-5.6 Terra Pro$104.0071.2×
48OpenAI: GPT-5.6 Terra$104.0071.2×
49Google: Nano Banana Pro (Gemini 3 Pro Image)$104.0071.2×
50Claude Opus 5 (batch)$125.0085.6×
51Anthropic: Claude Opus 4.8 (batch)$125.0085.6×
52OpenAI: GPT-5.4$130.0089.0×
53Anthropic: Claude Sonnet 4.5$150.00102.7×
54Claude Opus 5$250.00171.2×
55Anthropic: Claude Fable 5 (batch)$250.00171.2×
56Anthropic: Claude Opus 4.8$250.00171.2×
57OpenAI: GPT-5.5$260.00178.1×
58Anthropic: Claude Fable 5$500.00342.5×
59Claude Opus 5 (Fast)$500.00342.5×
60Anthropic: Claude Opus 4.8 (Fast)$500.00342.5×
61Anthropic: Claude Opus 4.1$750.00513.7×
62OpenAI: GPT-5 Pro$840.00575.3×
63OpenAI: GPT-5.5 Pro$1560.001068.5×

Cost-saving tips for document summarizers

  • Batch APIs (where offered) cut costs ~50% for non-realtime work.
  • Hierarchical summarization (chunk → summarize → merge) beats single huge prompts on cost.
  • Output is short relative to input — prioritize cheap input pricing.

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